Goodwill - Goodwill, Net (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Mar. 31, 2021
Goodwill:
Goodwill, net, beginning balance	$ 137,055	$ 137,055
Goodwill, net, ending balance		158,182
Subscription and software
Goodwill:
Goodwill, gross, beginning balance	207,850	207,850
Accumulated impairment losses, beginning balance	(65,569)	(65,569)
Goodwill, net, beginning balance	137,055	137,055
Goodwill from acquisitions		13,608
Effect of currency translation		2,293
Goodwill, gross, ending balance		221,458
Accumulated impairment losses, ending balance		(65,569)
Goodwill, net, ending balance		158,182
Goodwill, effect of currency translation | Subscription and software
Goodwill:
Effect of currency translation	$ (5,226)	$ 7,519